Yep, it’s August. But just now I was able to take boat out of winter storage.
What I have: code runs OKish.
What I mean is – it needs you to help it to help you in return.
Specifically – you shouldn’t slam throttle to full open and expect it to do magic. (maybe one day, not yet). Instead I set throttle to slightly about my target speed, and quickly speed is controlled within 0.5 mph. But then it halts. Sometimes in 30 seconds, sometimes in 20 minutes. And when halted – it does not restart GPS speed readout until you stop moving. Both issues point to GPS parsing code.